Free competition is the great means of increasing the efficiency and prosperity of the economic system.

解释：不可以不知道活着的乐趣，也不可以不知道虚度光阴的担忧。

每一块曾经制造的塑料仍然存在于地球的某个地方——这既是我们的挑战，也是我们的责任。

释义：高大的泰山，如果背对也会看不见；细毛的末端，如果仔细去看也能看清。

The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.

"The power of literature lies in its ability to make us feel less alone."